Contacts of the helix formed by residues 1394 - 1402 (chain A) in PDB entry 4YOC


Residue contacts within the protein are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332). A short description of the analytical approach is given at the end of the page.
For CSU analysis of other PDB entry

Note:
Non-standard 3 letter residue codes indicate a heterogroup. To identify and analyse, use LPC software

Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB   - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC   - hydrophobic-hydrophilic contact (destabilizing contact)
+/-  - indicates presence/absence of a specific contacts
*    - indicates residues forming contacts  by their side chain
       (including CA atoms)
Residues in contact with SER1394 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1035A  TYR      3.5    15.3    -      -       -      -
   1363A  ARG*     5.3     0.9    -      -       -      -
   1368A  ARG      5.2     0.4    -      -       -      -
   1369A  ASP*     2.9    40.0    +      -       -      -
   1372A  SER*     5.5     0.7    -      -       -      -
   1392A  PRO      3.4     1.2    +      -       -      -
   1393A  GLN*     1.3    82.7    -      -       -      +
   1395A  TRP*     1.3    60.3    +      -       -      +
   1396A  PHE      3.6     2.3    +      -       -      -
   1397A  GLN*     3.1    20.2    +      -       -      +
   1398A  ARG*     2.9    40.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with TRP1395 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1035A  TYR      4.4     2.0    +      -       -      -
   1036A  HIS      4.2     1.4    +      -       -      -
   1037A  ALA      3.8    17.3    -      -       -      +
   1038A  ASP*     3.4    29.4    -      -       +      -
   1039A  ILE*     3.5    53.4    -      -       +      +
   1040A  ASN*     4.7     2.8    +      -       -      -
   1073A  GLN*     4.0    10.5    -      -       -      +
   1076A  SER*     6.1     0.2    -      -       -      -
   1077A  MET*     5.3     6.2    -      -       -      -
   1305A  GLY*     5.3     2.9    -      -       -      -
   1332A  HIS*     4.8     6.5    -      +       -      -
   1363A  ARG*     5.5     4.3    -      -       -      +
   1365A  ILE*     4.5     9.9    -      -       +      -
   1394A  SER*     1.3    73.1    -      -       -      +
   1396A  PHE*     1.3    91.6    +      +       +      +
   1398A  ARG*     3.1    20.7    +      -       -      +
   1399A  GLN*     2.9    73.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE1396 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1305A  GLY      3.0    28.9    -      -       -      -
   1306A  VAL*     4.5     9.0    -      -       +      -
   1363A  ARG*     6.1     0.4    -      -       -      +
   1365A  ILE*     4.0    13.9    -      -       +      -
   1369A  ASP*     3.5    32.3    -      -       +      +
   1370A  THR*     3.7    25.4    -      -       +      -
   1394A  SER*     3.3     2.2    +      -       -      +
   1395A  TRP*     1.3   100.8    -      +       +      +
   1397A  GLN*     1.3    58.2    +      -       -      +
   1399A  GLN*     3.0     5.9    +      -       +      +
   1400A  LEU*     2.9    56.4    +      -       +      +
   1555A  ARG*     3.4    27.1    -      -       -      -
   1558A  GLY*     4.3     7.6    -      -       -      -
   1583A  PRO*     5.7     1.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN1397 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1368A  ARG      3.3     2.4    +      -       -      -
   1369A  ASP      3.2    17.6    +      -       -      +
   1370A  THR      4.3     0.7    -      -       -      +
   1371A  MET      4.1     0.6    -      -       -      +
   1372A  SER*     2.9    40.4    +      -       -      +
   1373A  ASP*     3.2    33.4    +      -       -      +
   1392A  PRO*     4.1     7.9    -      -       +      -
   1393A  GLN*     2.6    35.2    +      -       -      -
   1394A  SER*     3.1    19.2    +      -       -      +
   1396A  PHE*     1.3    76.7    -      -       +      +
   1398A  ARG*     1.3    57.7    +      -       -      +
   1400A  LEU*     3.7     5.3    -      -       -      +
   1401A  ARG*     2.9    36.7    +      -       -      +
   1555A  ARG*     3.9    10.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG1398 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1036A  HIS*     2.2    56.1    +      -       -      -
   1038A  ASP*     2.3    32.5    +      -       -      +
   1073A  GLN*     6.1     0.4    -      -       -      -
   1392A  PRO*     4.0    25.9    +      -       +      +
   1394A  SER*     2.9    13.4    +      -       -      +
   1395A  TRP*     3.1    38.5    +      -       -      +
   1397A  GLN*     1.3    75.0    -      -       -      +
   1399A  GLN*     1.3    63.7    +      -       -      +
   1402A  GLY*     3.0    32.9    +      -       -      +
    866C  GLN*     6.2     2.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN1399 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1073A  GLN*     3.9    15.3    +      -       -      +
   1077A  MET*     3.6    33.3    -      -       -      +
   1395A  TRP*     2.9    66.9    +      -       +      +
   1396A  PHE*     3.4     7.2    -      -       +      +
   1398A  ARG*     1.3    83.7    -      -       -      +
   1400A  LEU*     1.3    69.2    +      -       +      +
   1401A  ARG      3.5     0.7    +      -       -      -
   1402A  GLY*     3.8     6.4    +      -       -      -
   1560A  PRO*     5.8     0.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU1400 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1396A  PHE*     2.9    56.2    +      -       +      +
   1397A  GLN*     4.2     2.7    -      -       -      +
   1399A  GLN*     1.3    85.6    -      -       +      +
   1401A  ARG*     1.3    59.8    +      -       -      +
   1555A  ARG*     3.6    24.7    -      -       -      +
   1558A  GLY*     4.1    15.3    -      -       -      +
   1559A  PHE      3.3    27.6    -      -       -      +
   1560A  PRO*     3.8    11.0    -      -       +      +
   1561A  ASP*     2.9    37.3    +      -       -      +
   1562A  THR*     4.7     1.4    +      -       -      +
   1583A  PRO*     6.3     0.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG1401 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1373A  ASP*     2.8    34.9    +      -       -      +
   1388A  TYR*     3.4    42.6    -      -       +      +
   1390A  GLY      2.9    24.9    +      -       -      -
   1391A  GLU      3.7     4.8    +      -       -      -
   1392A  PRO*     3.5    39.0    -      -       +      +
   1397A  GLN      2.9    18.4    +      -       -      +
   1398A  ARG      4.6     0.2    -      -       -      +
   1400A  LEU*     1.3    77.4    -      -       -      +
   1402A  GLY*     1.3    67.4    +      -       -      +
   1404A  GLN      4.3     1.9    -      -       -      +
   1406A  GLN*     4.0    28.1    +      -       +      +
   1555A  ARG*     3.6     7.0    -      -       -      +
   1561A  ASP*     3.3    23.8    -      -       -      +
   1562A  THR*     5.5     4.1    -      -       -      +
    851C  ASN*     3.8    10.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY1402 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1392A  PRO*     5.2     5.4    -      -       -      +
   1398A  ARG*     3.0    22.7    +      -       -      +
   1399A  GLN      3.8     5.6    +      -       -      -
   1400A  LEU      3.7     1.0    -      -       -      -
   1401A  ARG*     1.3    86.4    -      -       -      +
   1403A  ALA*     1.3    64.0    +      -       -      -
   1404A  GLN      3.4     5.2    +      -       -      +
----------------------------------------------------------
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A short description of the analytical approach
The contact analysis used in this page is based upon the approach developed in: Sobolev V., Wade R.C., Vriend G. and Edelman M. PROTEINS (1996) 25, 120-129. Contact legitimacy depends on the hydrophobic-hydrophilic properties of the contacting atoms. In order to define it, for each inter-atomic contact, eight atom classes have been introduced:


   I  Hydrophilic      - N and O that can donate and accept hydrogen bonds
                         (e.g., oxygen of hydroxyl group of Ser. or Thr)
  II  Acceptor         - N or O that can only accept a hydrogen bond
 III  Donor            - N that can only donate a hydrogen bond
  IV  Hydrophobic      - Cl, Br, I and all C atoms that are not in
                         aromatic rings and do not have a covalent bond to
                         a N or O atom
   V  Aromatic         - C in aromatic rings irrespective of any other 
                         bonds formed by the atom
  VI  Neutral          - C atoms that have a covalent bond to at least one
                         atom of class I or two or more atoms from class II
                         or III; atoms; S, F, P, and metal atoms in all cases
 VII  Neutral-donor    - C atoms that have a covalent bond with only one
                         atom of class III
VIII  Neutral-acceptor - C atoms that have a covalent bond with only 
                         one atom of class II
For each pair of contacts the state of legitimacy is shown below:

Legend:
+, legitimate
-, illegitimate
------------------------------------------------------------
  Atomic class           I  II  III   IV   V   VI  VII  VIII
------------------------------------------------------------
   I  (Hydrophilic)      +   +    +    -   +   +    +    +
  II  (Acceptor)         +   -    +    -   +   +    +    -
 III  (Donor)            +   +    -    -   +   +    -    +
  IV  (Hydrophobic)      -   -    -    +   +   +    +    +
   V  (Aromatic)         +   +    +    +   +   +    +    +
  VI  (Neutral)          +   +    +    +   +   +    +    +
 VII  (Neutral-donor)    +   +    -    +   +   +    -    +
VIII  (Neutral-acceptor) +   -    +    +   +   +    +    -
------------------------------------------------------------
Warning!
Atom classes for heterogroups are automatically assigned based on the atomic coordinates. However, in three cases (see below) the automatic assignment is currently ambiguous. In these cases, the user is advised to manually analyse the full list of contacts using LPC software.
1. Carbon atoms belonging to a 4-, 5- or 6-member ring are 
   considered "aromatic" (Class V) if the ring is approximately
   planar, and "hydrophobic" (Class IV) or "neutral" (Classes
   VI, VII, VIII) if the ring is non-planar.
2. The oxygen atom of a carbonyl or hydroxy group is considered
   "hydroxy" (Class I) if the CO bond is longer than 1.29 Å, and
   "carbonyl" (Class II) if shorter.
3. All nitrogen atoms are considered "hydrophilic" (Class I).

Please E-mail any questions and/or suggestions concerning this page to Vladimir.Sobolev@weizmann.ac.il